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Bug #24054

kceph: umount on evicted client blocks forever

Added by Patrick Donnelly 7 months ago. Updated about 2 months ago.

Status:
Resolved
Priority:
Urgent
Assignee:
Category:
-
Target version:
Start date:
02/20/2015
Due date:
02/20/2015
% Done:

0%

Source:
Q/A
Tags:
Backport:
mimic,luminous
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
kceph
Labels (FS):
Pull request ID:

Description

Failed test:

/ceph/teuthology-archive/pdonnell-2018-05-08_01:06:46-kcephfs-mimic-testing-basic-smithi/2494030/teuthology.log

I had to kick it with `umount -f` which failed but that apparently caused the other umount (by the test) to finish:

pdonnell@smithi027:~$ mount
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=16393392k,nr_inodes=4098348,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=3281772k,mode=755)
/dev/sda1 on / type ext4 (rw,relatime,errors=remount-ro)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)  
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=31,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=16613)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)
mqueue on /dev/mqueue type mqueue (rw,relatime)
sunrpc on /run/rpc_pipefs type rpc_pipefs (rw,relatime)
nfsd on /proc/fs/nfsd type nfsd (rw,relatime)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
/dev/mapper/vg_nvme-lv_5 on /var/lib/ceph type xfs (rw,relatime,attr2,inode64,noquota)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=3281772k,mode=700,uid=1000,gid=1186)
172.21.15.200:6789,172.21.15.8:6790,172.21.15.8:6789:/ on /home/ubuntu/cephtest/mnt.0 type ceph (rw,relatime,name=0,secret=<hidden>,acl)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,relatime)
tmpfs on /run/user/1159 type tmpfs (rw,nosuid,nodev,relatime,size=3281772k,mode=700,uid=1159,gid=1159)
pdonnell@smithi027:~$ umount -f /home/ubuntu/cephtest/mnt.0
umount: only root can use "--force" option
pdonnell@smithi027:~$ sudo !!
sudo umount -f /home/ubuntu/cephtest/mnt.0
umount: /home/ubuntu/cephtest/mnt.0: target is busy
        (In some cases useful info about processes that
         use the device is found by lsof(8) or fuser(1).)
pdonnell@smithi027:~$ sudo umount -f /home/ubuntu/cephtest/mnt.0
umount: /home/ubuntu/cephtest/mnt.0: mountpoint not found

Fix should be similar to #10915.


Related issues

Follows fs - Bug #10915: client: hangs on umount if it had an MDS session evicted Resolved 02/19/2015
Copied to fs - Backport #24188: luminous: kceph: umount on evicted client blocks forever Resolved
Copied to fs - Backport #24254: mimic: kceph: umount on evicted client blocks forever Resolved

History

#1 Updated by Patrick Donnelly 7 months ago

  • Due date set to 02/20/2015
  • Start date changed from 05/08/2018 to 02/20/2015
  • Follows Bug #10915: client: hangs on umount if it had an MDS session evicted added

#2 Updated by Patrick Donnelly 7 months ago

  • Status changed from New to Need Review
  • Backport set to luminous

#3 Updated by Zheng Yan 7 months ago

  • Status changed from Need Review to Pending Backport

#4 Updated by Nathan Cutler 7 months ago

  • Copied to Backport #24188: luminous: kceph: umount on evicted client blocks forever added

#5 Updated by Patrick Donnelly 7 months ago

  • Backport changed from luminous to mimic,luminous

#6 Updated by Patrick Donnelly 7 months ago

  • Target version changed from v13.2.0 to v14.0.0

#7 Updated by Nathan Cutler 7 months ago

  • Copied to Backport #24254: mimic: kceph: umount on evicted client blocks forever added

#8 Updated by Zheng Yan about 2 months ago

  • Status changed from Pending Backport to Resolved

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